1 EXHIBIT 23.9 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report, dated April 30, 1999, on the financial statements of Rockwell Electric, Inc., by reference into Integrated Electrical Services, Inc.'s Amendment No. 2 to Form S-4 (File No. 333-75139), and to all references to our firm. S. J. GALLINA & CO., LLP S. J. Gallina & Co., LLP Walnut Creek, California May 18, 1999